The crystal structure of anhydrous cadmium hexacyanoferrate (II), Cd2[Fe(CN)6], has
been solved from powder diffraction data using information extracted from low resolution
radial distribution function. Such anhydrous solid is obtained by soft heating of its
parent octahydrate. The radial distribution function proves to be useful for observing
changes in heavy atoms interatomic distances in the structure during phase transition
related to the material dehydration process. These distances were then used for guessing
the heavy atom positions from the direct methods results. Cd2[Fe(CN)6] crystallizes in
the hexagonal system, space group P-3 (147) and cell parameters: a = 6.32046(5) and
c = 6.33786(10)Å. The structure was refined to final agreement factors of Rwp = 6.26%
and S = 1.99. The proposed structural model is supported by the obtained information
from Mössbauer, IR and Raman spectra.